#283281#283281

#283281 is a dark, vivid blue. Relative luminance 0.043; OKLCH L 36.0% C 0.132 H 272.4°. Best body text is #FFFFFF at 11.27:1 contrast (WCAG AA passes).

Color values

HEX	#283281
RGB	rgb(40, 50, 129)
HSL	hsl(233, 53%, 33%)
HSV	hsv(233, 69%, 51%)
CMYK	cmyk(69%, 61.2%, 0%, 49.4%)
CIE-LAB	lab(24.69, 23.43, -45.91)
CIE-LCH	lch(24.69, 51.54, 297.04°)
OKLab	oklab(36% 0.0055 -0.1323)
OKLCH	oklch(36% 0.132 272.4)
XYZ	xyz(5.9768, 4.3168, 21.2829)
Luminance	0.0432 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#283281 #817728

analogous

#285E81 #283281 #4A2881

triadic

#283281 #812832 #328128

tetradic

#283281 #81285E #817728 #28814A

square

#283281 #81285E #817728 #28814A

split-complementary

#283281 #814A28 #5E8128

monochromatic

#0B0E24 #1A2052 #283281 #3644B0 #5865CB

Accessibility & contrast

On white

11.27

#283281 on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

1.86

#283281 on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #283281

11.27:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##283281	#FFFFFF	#000000	##FFFFFF
##283281	1.00	11.27	1.86	11.27
#FFFFFF	11.27	1.00	21.00	1.00
#000000	1.86	21.00	1.00	21.00
##FFFFFF	11.27	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#003F84

Deuteranopia (green-blind)

#00377F

Tritanopia (blue-blind)

#004654

Achromatopsia (no color)

#3B3B3B

Design tokens & code

CSS

--color: #283281;
/* rgb */ color: rgb(40, 50, 129);
/* oklch */ color: oklch(36.0% 0.132 272.4);

Tailwind

colors: {
  custom: {
    50: '#6e69a6',
    500: '#283281',
    950: '#000000',
  },
}

SCSS

$custom: #283281;
$custom-light: #6e69a6;
$custom-dark: #000000;

JSON

{
  "hex": "#283281",
  "rgb": {
    "r": 40,
    "g": 50,
    "b": 129
  },
  "hsl": {
    "h": 233.258,
    "s": 52.663,
    "l": 33.137
  },
  "oklch": {
    "l": 0.36001,
    "c": 0.13238,
    "h": 272.4
  },
  "luminance": 0.04317
}

Semantic roles & 50–950 ramp

primary

#283281

secondary

#B0A654

accent

#CC4CDC

background

#F7F6FA

surface

#EDEBF4

border

#C8C6CE

text

#08060F

muted

#7B7A7F

Preview Lab

Preview with #283281

Body copy rendered with the generated semantic roles for this colour.

Preview Lab → · Contrast checker → · Palette generator →